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From: Elijah Newren <newren@gmail.com>
To: git@vger.kernel.org
Cc: sbeller@google.com, gitster@pobox.com, Elijah Newren <newren@gmail.com>
Subject: [PATCH v2 18/33] merge-recursive: make !o->detect_rename codepath more obvious
Date: Mon, 20 Nov 2017 14:01:54 -0800	[thread overview]
Message-ID: <20171120220209.15111-19-newren@gmail.com> (raw)
In-Reply-To: <20171120220209.15111-1-newren@gmail.com>

Previously, if !o->detect_rename then get_renames() would return an
empty string_list, and then process_renames() would have nothing to
iterate over.  It seems more straightforward to simply avoid calling
either function in that case.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 merge-recursive.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/merge-recursive.c b/merge-recursive.c
index db8590ab1a..be04e61c10 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -1329,8 +1329,6 @@ static struct string_list *get_renames(struct merge_options *o,
 	struct diff_options opts;
 
 	renames = xcalloc(1, sizeof(struct string_list));
-	if (!o->detect_rename)
-		return renames;
 
 	diff_setup(&opts);
 	opts.flags.recursive = 1;
@@ -1648,6 +1646,12 @@ static int handle_renames(struct merge_options *o,
 			  struct string_list *entries,
 			  struct rename_info *ri)
 {
+	if (!o->detect_rename) {
+		ri->head_renames = NULL;
+		ri->merge_renames = NULL;
+		return 1;
+	}
+
 	ri->head_renames  = get_renames(o, head, common, head, merge, entries);
 	ri->merge_renames = get_renames(o, merge, common, head, merge, entries);
 	return process_renames(o, ri->head_renames, ri->merge_renames);
@@ -1658,6 +1662,9 @@ static void cleanup_rename(struct string_list *rename)
 	const struct rename *re;
 	int i;
 
+	if (rename == NULL)
+		return;
+
 	for (i = 0; i < rename->nr; i++) {
 		re = rename->items[i].util;
 		diff_free_filepair(re->pair);
-- 
2.15.0.309.g00c152f825


  parent reply	other threads:[~2017-11-20 22:02 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-20 22:01 [PATCH v2 00/33] Add directory rename detection to git Elijah Newren
2017-11-20 22:01 ` [PATCH v2 01/33] Tighten and correct a few testcases for merging and cherry-picking Elijah Newren
2017-11-20 22:01 ` [PATCH v2 02/33] merge-recursive: fix logic ordering issue Elijah Newren
2017-11-20 22:01 ` [PATCH v2 03/33] merge-recursive: add explanation for src_entry and dst_entry Elijah Newren
2017-11-20 22:01 ` [PATCH v2 04/33] directory rename detection: basic testcases Elijah Newren
2017-11-20 22:01 ` [PATCH v2 05/33] directory rename detection: directory splitting testcases Elijah Newren
2017-11-20 22:01 ` [PATCH v2 06/33] directory rename detection: testcases to avoid taking detection too far Elijah Newren
2017-11-20 22:01 ` [PATCH v2 07/33] directory rename detection: partially renamed directory testcase/discussion Elijah Newren
2017-11-20 22:01 ` [PATCH v2 08/33] directory rename detection: files/directories in the way of some renames Elijah Newren
2017-11-20 22:01 ` [PATCH v2 09/33] directory rename detection: testcases checking which side did the rename Elijah Newren
2017-11-20 22:01 ` [PATCH v2 10/33] directory rename detection: more involved edge/corner testcases Elijah Newren
2017-11-20 22:01 ` [PATCH v2 11/33] directory rename detection: testcases exploring possibly suboptimal merges Elijah Newren
2017-11-20 22:01 ` [PATCH v2 12/33] directory rename detection: miscellaneous testcases to complete coverage Elijah Newren
2017-11-20 22:01 ` [PATCH v2 13/33] directory rename detection: tests for handling overwriting untracked files Elijah Newren
2017-11-20 22:01 ` [PATCH v2 14/33] directory rename detection: tests for handling overwriting dirty files Elijah Newren
2017-11-20 22:01 ` [PATCH v2 15/33] merge-recursive: move the get_renames() function Elijah Newren
2017-11-20 22:01 ` [PATCH v2 16/33] merge-recursive: introduce new functions to handle rename logic Elijah Newren
2017-11-20 22:01 ` [PATCH v2 17/33] merge-recursive: fix leaks of allocated renames and diff_filepairs Elijah Newren
2017-11-20 22:01 ` Elijah Newren [this message]
2017-11-20 22:01 ` [PATCH v2 19/33] merge-recursive: split out code for determining diff_filepairs Elijah Newren
2017-11-20 22:01 ` [PATCH v2 20/33] merge-recursive: add a new hashmap for storing directory renames Elijah Newren
2017-11-20 22:01 ` [PATCH v2 21/33] merge-recursive: add get_directory_renames() Elijah Newren
2017-11-20 22:01 ` [PATCH v2 22/33] merge-recursive: check for directory level conflicts Elijah Newren
2017-11-20 22:01 ` [PATCH v2 23/33] merge-recursive: add a new hashmap for storing file collisions Elijah Newren
2017-11-20 22:02 ` [PATCH v2 24/33] merge-recursive: add computation of collisions due to dir rename & merging Elijah Newren
2017-11-20 22:02 ` [PATCH v2 25/33] merge-recursive: check for file level conflicts then get new name Elijah Newren
2017-11-20 22:02 ` [PATCH v2 26/33] merge-recursive: when comparing files, don't include trees Elijah Newren
2017-11-20 22:02 ` [PATCH v2 27/33] merge-recursive: apply necessary modifications for directory renames Elijah Newren
2017-11-20 22:02 ` [PATCH v2 28/33] merge-recursive: avoid clobbering untracked files with " Elijah Newren
2017-11-20 22:02 ` [PATCH v2 29/33] merge-recursive: fix overwriting dirty files involved in renames Elijah Newren
2017-11-20 22:02 ` [PATCH v2 30/33] merge-recursive: fix remaining directory rename + dirty overwrite cases Elijah Newren
2017-11-20 22:02 ` [PATCH v2 31/33] directory rename detection: new testcases showcasing a pair of bugs Elijah Newren
2017-11-20 22:02 ` [PATCH v2 32/33] merge-recursive: avoid spurious rename/rename conflict from dir renames Elijah Newren
2017-11-20 22:02 ` [PATCH v2 33/33] merge-recursive: ensure we write updates for directory-renamed file Elijah Newren

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